Tap water in Santa Maria, CA — ZIP 93402
2 public water systems serving about 13,028 people. PFAS "forever chemicals" have been detected here.
C
Fair
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5
testing. Levels and the 2024 federal limits are shown per system below.
Water systems serving 93402
Los Osos Community Services District
PWSID CA4010016 · serves 7,086 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 18 ppt — above federal limit
Golden State Water Company - Los Osos
PWSID CA4010017 · serves 5,942 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 8.8 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology